142877191431 has 12 divisors (see below), whose sum is σ = 205160382392. Its totient is φ = 87922972848.

The previous prime is 142877191361. The next prime is 142877191433. The reversal of 142877191431 is 134191778241.

It is not a de Polignac number, because 142877191431 - 2¹⁸ = 142876929287 is a prime.

It is a super-2 number, since 2×142877191431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142877191433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2330290 + ... + 2390816.

Almost surely, 2^142877191431 is an apocalyptic number.

142877191431 is a deficient number, since it is larger than the sum of its proper divisors (62283190961).

142877191431 is an frugal number, since it uses more digits than its factorization.

142877191431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121070 (or 60543 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The spelling of 142877191431 in words is "one hundred forty-two billion, eight hundred seventy-seven million, one hundred ninety-one thousand, four hundred thirty-one".